Is Zikar or remembrance of Allah is the Admonition of Allah which is revealed and protected by Allah and present inside the Quran only?

إِنَّا نَحۡنُ نَزَّلۡنَا ٱلذِّكۡرَ وَإِنَّا لَهُۥ لَحَٰفِظُونَ ٩

As for the Admonition, indeed it is We Who have revealed it and it is indeed We Who are its guardians.

Raha yeh zikr, to isko humne nazil kiya hai aur hum khud iske nigehbaan hain

صٓۚ وَٱلۡقُرۡءَانِ ذِي ٱلذِّكۡرِ ١

Sad, and by the Qur'an full of exhortation!

Saad, kasam hai naseehat bharey Quran ki

نَّحۡنُ أَعۡلَمُ بِمَا يَقُولُونَۖ وَمَآ أَنتَ عَلَيۡهِم بِجَبَّارٖۖ فَذَكِّرۡ بِٱلۡقُرۡءَانِ مَن يَخَافُ وَعِيدِ ٤٥

(O Prophet), We are well aware of what they say; and you are not required to force things on them. So exhort with the Qur'an all those who fear My warning.

Aey Nabi, jo baatein yeh log bana rahe hain unhein hum khoob jaante hain, aur tumhara kaam inse jabran (zabardasti) baat manwana nahin hai. Bas tum is Quran ke zariye se har us shaks ko nasihat kardo jo meri tambeeh se darey

وَلَقَدۡ يَسَّرۡنَا ٱلۡقُرۡءَانَ لِلذِّكۡرِ فَهَلۡ مِن مُّدَّكِرٖ ١٧

We have made this Qur'an easy as a reminder. Is there, then, any who will take heed?

Humne is Quran ko nasihat ke liye aasaan zariya bana diya hai, phir kya hai koi nasihat qabool karne wala